Maybe the poster was till today just a reader, not a member. At the bottom of thread you get suggestions for other threads, some of these are over 10 years old... Or maybe the poster was thinking about the cruise he/she had taken in 2017 and wondered what happened after this tragedy with the family. He googled, came across this thread, found the information conflicting with what he thinks has happened and wanted to give his point of view.
And for 3 times the same post, probably a glitch in the system and the poster clicked on 'post reply' several times.